Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
Westfield's transition into April is marked by a temperature shift, moving from a cool 51.4°F (10.8°C) in March to a refreshing 62.8°F (17.1°C). In the month of April, the average low-temperature in Westfield, Illinois, usually rests at a chilly 46.4°F (8°C).Humidity
The average relative humidity in April is 77%.Rainfall
April is the month with the most rainfall. Rain falls for 12.6 days and accumulates 1.54" (39mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.3 snowfall days, in April, Westfield aggregates 0.04" (1mm) of snow. Throughout the year, in Westfield, there are 18.9 snowfall days, and 1.73" (44mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 16min.On the first day of April in Westfield, sunrise is at 6:34 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 7:45 pm CDT.
Sunshine
In April, the average sunshine in Westfield is 8.1h.UV index
In Westfield, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during April leads to these instructions:
Guard yourself - Precautionary measures against sun damage are advocated. Around midday, solar radiation is most harmful; hence, exposure should be limited. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What is the average April temperature in Westfield?
What is the average humidity in April in Westfield?
What is the rainiest month in Westfield?
How many days does it rain in April in Westfield?
What is the last month it snows in Westfield?
What is the average length of the day in April in Westfield?
When are sunrise and sunset in April in Westfield?
How long on average sun shines in April in Westfield?
What is the UV index intensity in April in Westfield?
Average temperature in April
Westfield, IL
- Average high temperature in April: 62.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in April: 46.4°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in April
Westfield, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Westfield, IL
- Average wind speed in April: 10.1mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in April
Westfield, IL
- Average humidity in April: 77%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Westfield, IL
- Average rainfall in April: 1.54"
The wettest month (with the highest rainfall) is April (1.54").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in April
Westfield, IL
- Average rainfall days in April: 12.6 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (6 days).
Average snowfall in April
Westfield, IL
- Average snowfall in April: 0.04"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Westfield, IL
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Westfield, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in April
Westfield, IL
- Average sunshine days in April: 14.8 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.4 days).
Average UV index in April
Westfield, IL
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Westfield, IL
- Average cloud cover in April: 44
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in April
Westfield, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Westfield, Illinois, USA
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